Replace hacky L_FLOATING container with a list

Workspaces previously had a magical `workspace->floating` container,
which had a layout of L_FLOATING and whose children were actual floating
views. This allowed some conveniences, but was a hacky solution because
the container has to be exempt from focus, coordinate transactions with
the workspace, and omit emitting IPC events (which we didn't do).

This commit changes it to be a list directly in the sway_workspace. The
L_FLOATING layout is no longer used so this has been removed as well.

* Fixes incorrect check in the swap command (it checked if the
containers had the L_FLOATING layout, but this layout applied to the
magical container).
* Introduces workspace_add_floating

1 files changed, 3 insertions, 3 deletions

diff --git a/sway/tree/view.c b/sway/tree/view.c
index 7a2c1950..b77a9bb2 100644
--- a/sway/tree/view.c
+++ b/sway/tree/view.c
@@ -531,7 +531,7 @@ static bool should_focus(struct sway_view *view) {
         struct sway_container *parent = view->swayc->parent;
         if (parent->type == C_WORKSPACE && prev_focus == parent) {
                 size_t num_children = parent->children->length +
-                        parent->sway_workspace->floating->children->length;
+                        parent->sway_workspace->floating->length;
                 if (num_children == 1) {
                         return true;
                 }
@@ -557,7 +557,7 @@ void view_map(struct sway_view *view, struct wlr_surface *wlr_surface) {
         // If we're about to launch the view into the floating container, then
         // launch it as a tiled view in the root of the workspace instead.
         if (container_is_floating(target_sibling)) {
-                target_sibling = target_sibling->parent->parent;
+                target_sibling = target_sibling->parent;
         }
 
         view->swayc = container_view_create(target_sibling, view);
@@ -1046,7 +1046,7 @@ bool view_is_visible(struct sway_view *view) {
         // Check view isn't in a tabbed or stacked container on an inactive tab
         struct sway_seat *seat = input_manager_current_seat(input_manager);
         struct sway_container *container = view->swayc;
-        while (container->type != C_WORKSPACE && container->layout != L_FLOATING) {
+        while (container->type != C_WORKSPACE) {
                 if (container->parent->layout == L_TABBED ||
                                 container->parent->layout == L_STACKED) {
                         if (seat_get_active_child(seat, container->parent) != container) {